/* roulang page: index */
:root{
  --c-ink:#0B241D;
  --c-brand:#1A5A45;
  --c-brand-soft:#2E8567;
  --c-lime:#C9F16B;
  --c-orange:#FF6A2B;
  --c-bg:#F4F7F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#EAF0E6;
  --c-line:#DFE7DA;
  --c-text:#10201B;
  --c-text-2:#4C5C55;
  --c-text-3:#8B9A93;
  --grad-brand:linear-gradient(135deg,#0B241D 0%,#1A5A45 55%,#2E8567 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 6px 20px rgba(11,36,29,.06);
  --sh-2:0 14px 34px rgba(11,36,29,.12);
  --container:1200px;
  --num-font:'Barlow Condensed','Oswald','PingFang SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC','Hiragino Sans GB',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
h1{font-size:52px;font-weight:800;line-height:1.15}
h2{font-size:34px}
h3{font-size:22px}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
.num{font-family:var(--num-font);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-ink);
  border-bottom:1px solid rgba(46,133,103,.45);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(11,36,29,.22)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--c-lime);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-ink);font-size:17px;
}
.logo-text{color:#fff;font-size:19px;font-weight:800;letter-spacing:.5px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 16px;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  transition:color .16s ease;
}
.nav-link::after{
  content:'';position:absolute;left:16px;right:16px;bottom:0;height:3px;
  background:var(--c-lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-left:10px;padding:11px 22px;border-radius:999px;
  background:var(--c-lime);color:var(--c-ink);font-size:15px;font-weight:700;
  transition:background .2s ease,color .2s ease,transform .15s ease;
}
.nav-cta:hover{background:var(--c-orange);color:#fff}
.nav-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.22);
  border-radius:12px;background:transparent;color:#fff;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,.08)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:700;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,opacity .2s ease;
}
.btn-primary{background:var(--c-lime);color:var(--c-ink)}
.btn-primary:hover{background:var(--c-orange);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-surface-2)}
.btn-ghost:active{transform:scale(.98)}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--c-brand);
  border-bottom:1px solid rgba(26,90,69,.35);padding-bottom:2px;
}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{color:var(--c-orange);border-color:rgba(255,106,43,.5)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--grad-brand);color:#fff;overflow:hidden}
.hero::after{
  content:'';position:absolute;right:-140px;bottom:-160px;width:520px;height:520px;
  border:1px solid rgba(201,241,107,.16);border-radius:50%;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  padding:84px 0 92px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(201,241,107,.14);border:1px solid rgba(201,241,107,.4);
  color:var(--c-lime);font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero h1{color:#fff;margin-bottom:18px}
.hero-sub{font-size:18px;line-height:1.7;color:rgba(255,255,255,.82);max-width:520px}
.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin:30px 0 26px}
.hero .link-arrow{color:var(--c-lime);border-color:rgba(201,241,107,.4)}
.hero .link-arrow:hover{color:#fff;border-color:#fff}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points i{color:var(--c-lime);font-size:12px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;
  box-shadow:0 24px 50px rgba(0,0,0,.32);
}
.stat-badge{
  position:absolute;left:-14px;bottom:-22px;
  background:rgba(255,255,255,.97);color:var(--c-text);
  padding:16px 22px;border-radius:16px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;line-height:1.2;
}
.stat-badge .n{font-family:var(--num-font);font-size:30px;font-weight:700;color:var(--c-brand)}
.stat-badge .l{font-size:12px;color:var(--c-text-3);letter-spacing:.06em;margin-top:4px}

/* ---------- stat strip ---------- */
.stat-strip{background:var(--c-ink);padding:26px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-cell{
  display:flex;align-items:center;gap:14px;
  padding:10px 18px;border-left:1px solid rgba(201,241,107,.24);
}
.stat-cell:first-child{border-left:none}
.stat-cell .v{font-family:var(--num-font);font-size:30px;font-weight:700;color:var(--c-lime);line-height:1}
.stat-cell .t{font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.04em;line-height:1.4}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--c-brand-soft);margin-bottom:12px;text-transform:uppercase;
}
.section-title{max-width:720px}
.section-desc{color:var(--c-text-2);font-size:16px;max-width:760px;margin-top:14px}
.section--dark{background:var(--c-ink);color:#fff}
.section--dark .section-desc{color:rgba(255,255,255,.72)}
.section--dark .eyebrow{color:var(--c-lime)}
.section--dark .section-title{color:#fff}

/* ---------- two lines (category entries) ---------- */
.line-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.line-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:24px;overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.line-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.line-card img{width:100%;height:236px;object-fit:cover}
.line-card--sm img{height:168px}
.line-body{padding:26px 28px 30px;display:flex;flex-direction:column;flex:1}
.line-body h3{margin-bottom:12px}
.line-body p{color:var(--c-text-2);font-size:15px;margin-bottom:18px}
.line-list{margin-bottom:22px;display:flex;flex-direction:column;gap:10px}
.line-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.line-list i{color:var(--c-brand-soft);margin-top:4px;font-size:12px}
.line-card .link-arrow{margin-top:auto;align-self:flex-start}

/* ---------- ladder ---------- */
.ladder{display:flex;flex-direction:column;gap:18px}
.ladder-item{
  display:grid;grid-template-columns:96px 1fr auto;gap:28px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px 32px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.ladder-item:nth-child(2){margin-left:34px}
.ladder-item:nth-child(3){margin-left:68px;border-color:rgba(201,241,107,.9)}
.ladder-item:nth-child(4){margin-left:102px}
.ladder-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.ladder-num{
  font-family:var(--num-font);font-size:46px;font-weight:700;color:var(--c-surface-2);
  line-height:1;letter-spacing:.02em;
}
.ladder-item:nth-child(3) .ladder-num{color:var(--c-brand-soft)}
.ladder-body h3{font-size:19px;margin-bottom:6px}
.ladder-body p{color:var(--c-text-2);font-size:14px;margin:0}
.ladder-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--c-surface-2);color:var(--c-brand);font-size:12px;font-weight:600;
}
.badge-state{
  display:inline-flex;align-items:center;gap:7px;padding:8px 18px;border-radius:999px;
  background:var(--c-ink);color:var(--c-lime);font-size:13px;font-weight:700;white-space:nowrap;
}
.badge-state.is-warm{background:rgba(255,106,43,.12);color:var(--c-orange)}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:1fr 1.16fr 1fr;gap:24px;align-items:stretch}
.plan{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:24px;padding:34px 30px;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.plan--main{border:2px solid var(--c-lime);box-shadow:var(--sh-2)}
.plan-badge{
  position:absolute;top:-14px;left:32px;padding:6px 18px;border-radius:999px;
  background:var(--c-lime);color:var(--c-ink);font-size:13px;font-weight:800;
}
.plan h3{font-size:21px;margin-bottom:8px}
.plan .plan-note{font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.plan-price{display:flex;align-items:baseline;gap:8px;margin-bottom:22px}
.plan-price .p{font-family:var(--num-font);font-size:44px;font-weight:700;color:var(--c-ink);line-height:1}
.plan-price .u{font-size:13px;color:var(--c-text-3)}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.plan-list li i{width:18px;flex-shrink:0;margin-top:5px;font-size:12px}
.plan-list li i.on{color:var(--c-brand-soft)}
.plan-list li i.off{color:#C3CCC6}
.plan-list li.off-item{color:var(--c-text-3)}
.plan .btn{width:100%;margin-top:auto}

/* ---------- flash ---------- */
.flash{
  background:var(--grad-brand);border-radius:24px;color:#fff;
  padding:30px 36px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;box-shadow:var(--sh-2);
}
.flash-left{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.flash-left .ft{font-size:18px;font-weight:700}
.flash-left .fs{font-size:13px;color:rgba(255,255,255,.7);display:block;font-weight:400;margin-top:4px}
.countdown{display:flex;align-items:center;gap:8px}
.cd-box{
  min-width:56px;padding:10px 8px;border-radius:12px;
  background:rgba(255,255,255,.1);border:1px solid rgba(201,241,107,.4);text-align:center;
}
.cd-box b{display:block;font-family:var(--num-font);font-size:26px;font-weight:700;color:var(--c-lime);line-height:1}
.cd-box span{font-size:11px;color:rgba(255,255,255,.6)}
.cd-sep{font-family:var(--num-font);font-size:24px;color:rgba(201,241,107,.7)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:24px;
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.news-card--wide{grid-column:span 2}
.news-card--wide .news-thumb img{height:264px}
.news-thumb{display:block;background:var(--c-surface-2);overflow:hidden}
.news-thumb img{width:100%;height:196px;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:12px;color:var(--c-text-3)}
.news-tag{
  display:inline-flex;padding:4px 12px;border-radius:999px;
  background:var(--c-surface-2);color:var(--c-brand);font-weight:600;
}
.news-title{font-size:19px;line-height:1.45;margin-bottom:10px}
.news-title a:hover{color:var(--c-brand-soft)}
.news-desc{
  font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .link-arrow{margin-top:auto;align-self:flex-start;font-size:14px}
.news-empty{
  grid-column:1/-1;background:var(--c-surface);border:1px dashed var(--c-line);
  border-radius:24px;padding:56px 24px;text-align:center;color:var(--c-text-2);
}
.news-empty .ico{font-size:34px;color:var(--c-line);margin-bottom:16px}
.news-empty p{margin-bottom:20px;font-size:15px}

/* ---------- voice ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.voice{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:24px;
  padding:30px 28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.voice:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.voice .quote{color:var(--c-lime);font-size:22px;margin-bottom:16px}
.voice p{font-size:15px;color:var(--c-text-2);line-height:1.8;margin-bottom:22px}
.voice-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.voice-avatar{
  width:42px;height:42px;border-radius:50%;background:var(--c-surface-2);
  display:flex;align-items:center;justify-content:center;color:var(--c-brand);font-weight:700;font-size:15px;
}
.voice-user b{display:block;font-size:14px}
.voice-user span{font-size:12px;color:var(--c-text-3)}

/* ---------- consult ---------- */
.consult-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.consult-side h2{margin-bottom:18px}
.consult-side p{color:var(--c-text-2);font-size:15px}
.consult-trust{display:flex;flex-direction:column;gap:16px;margin-top:28px}
.consult-trust li{display:flex;gap:12px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.consult-trust i{color:var(--c-brand-soft);margin-top:4px}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:24px;
  padding:36px;box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--c-text-2)}
.field input,.field select,.field textarea{
  height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface-2);font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:auto;min-height:118px;padding:14px 16px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--c-lime);box-shadow:0 0 0 3px rgba(201,241,107,.35);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-note{font-size:12px;color:var(--c-text-3);margin-top:14px}
.form-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:6px}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{background:var(--c-surface);border-color:rgba(26,90,69,.32)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;
  justify-content:space-between;gap:18px;padding:14px 26px;font-size:16px;font-weight:600;
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--c-surface-2)}
.faq-item summary i{color:var(--c-brand-soft);transition:transform .25s ease;font-size:14px}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-body{padding:2px 26px 24px;background:var(--c-surface-2);font-size:15px;color:var(--c-text-2);line-height:1.8}
.faq-body p:last-child{margin-bottom:0}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:52px}
.footer-brand .logo-text{display:inline-block;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--c-lime)}
.footer-col li{font-size:14px;line-height:1.7}
.footer-note{font-size:12px;color:rgba(255,255,255,.42);line-height:1.8;margin-top:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom .dot{color:rgba(255,255,255,.25);margin:0 8px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  h1{font-size:46px}
  h2{font-size:30px}
  .hero-grid{gap:40px;padding:72px 0 84px}
}
@media (max-width:1023px){
  h1{font-size:38px}
  h2{font-size:27px}
  .nav-wrap{height:64px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;z-index:70;
    background:var(--c-ink);flex-direction:column;align-items:stretch;gap:0;
    padding:18px 20px 40px;overflow-y:auto;
    transform:translateY(-118%);transition:transform .28s ease;
  }
  .main-nav.is-open{transform:translateY(0)}
  .nav-link{height:56px;justify-content:flex-start;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--c-lime)}
  .nav-cta{margin:22px 0 0;justify-content:center;width:100%;padding:15px 22px}
  .hero-grid{grid-template-columns:1fr;gap:48px;padding:56px 0 72px}
  .hero-visual{order:-1}
  .hero-sub{max-width:none}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat-cell:nth-child(3){border-left:none}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .line-grid{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr;gap:20px}
  .plan--main{border-width:2px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--wide{grid-column:span 2}
  .voice-grid{grid-template-columns:1fr}
  .consult-grid{grid-template-columns:1fr;gap:32px}
  .ladder-item{margin-left:0!important;grid-template-columns:64px 1fr;gap:20px;padding:22px 24px}
  .ladder-tags{grid-column:1/-1}
  .badge-state{grid-column:1/-1;justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  h1{font-size:32px}
  h2{font-size:24px}
  h3{font-size:18px}
  body{font-size:15px;line-height:1.8}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .news-grid{grid-template-columns:1fr}
  .news-card--wide{grid-column:span 1}
  .hero-visual img{aspect-ratio:16/11}
  .stat-cell{padding:8px 12px;gap:10px}
  .stat-cell .v{font-size:24px}
  .stat-cell .t{font-size:12px}
  .flash{padding:24px;gap:22px}
  .cd-box{min-width:48px}
  .form-row{grid-template-columns:1fr;gap:0}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .hero-actions{gap:18px}
  .btn{width:100%}
  .hero-actions .link-arrow{width:auto}
  .stat-grid{grid-template-columns:1fr 1fr}
  .ladder-item{grid-template-columns:1fr;gap:12px}
  .ladder-num{font-size:36px}
  .news-thumb img{height:182px}
}

/* roulang page: article */
:root{
  --c-ink:#0B241D;
  --c-brand:#1A5A45;
  --c-brand-soft:#2E8567;
  --c-lime:#C9F16B;
  --c-orange:#FF6A2B;
  --c-bg:#F4F7F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#EAF0E6;
  --c-line:#DFE7DA;
  --c-text:#10201B;
  --c-text-2:#4C5C55;
  --c-text-3:#8B9A93;
  --grad-brand:linear-gradient(135deg,#0B241D 0%,#1A5A45 55%,#2E8567 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(11,36,29,.06);
  --sh-2:0 14px 34px rgba(11,36,29,.12);
  --sp-section:96px;
  --font-num:"Barlow Condensed","Oswald","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--c-text)}
p{margin:0}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:.5px}

.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-ink);
  border-bottom:1px solid rgba(46,133,103,.45);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(11,36,29,.34)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-brand);color:var(--c-lime);font-size:15px;
  box-shadow:inset 0 0 0 1px rgba(201,241,107,.35);
}
.logo-text{color:#fff;font-size:19px;font-weight:800;letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:var(--r-pill);
  color:rgba(255,255,255,.76);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:#fff;background:rgba(201,241,107,.12)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--c-lime);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;margin-left:10px;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--c-lime);color:var(--c-ink);font-size:15px;font-weight:700;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--c-orange);color:#fff}
.nav-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.08);color:#fff;font-size:18px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(201,241,107,.18);color:var(--c-lime)}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  padding:14px 0;font-size:13px;color:var(--c-text-3);line-height:1.7;
}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-brand)}
.crumb .sep{color:var(--c-line)}
.crumb .cur{color:var(--c-text);font-weight:600;overflow-wrap:anywhere}

/* ============ 文章头部 ============ */
.article-head{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:40px 0 34px}
.head-inner{max-width:880px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-brand);
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge-lime{background:var(--c-lime);color:var(--c-ink)}
.article-title{
  font-size:42px;font-weight:800;line-height:1.2;margin:16px 0 18px;
  letter-spacing:-.4px;overflow-wrap:anywhere;
}
.meta-bar{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;
  font-size:14px;color:var(--c-text-3);
  padding-top:18px;border-top:1px dashed var(--c-line);
}
.meta-bar .item{display:inline-flex;align-items:center;gap:7px}
.meta-bar i{color:var(--c-brand-soft)}
.meta-bar .dot-line{width:1px;height:14px;background:var(--c-line)}

/* ============ 主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 330px;
  gap:48px;align-items:start;
  padding:56px 0 var(--sp-section);
}
.article-main{min-width:0}

.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:34px 38px;box-shadow:var(--sh-1);
}
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--c-text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.35;
  margin:40px 0 16px;padding-left:14px;border-left:5px solid var(--c-lime);
}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:700;margin:22px 0 10px;color:var(--c-brand)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0}
.article-body ul li::marker,.article-body ol li::marker{color:var(--c-brand-soft);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:4px solid var(--c-lime);
  background:var(--c-surface-2);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:20px 0;width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;line-height:1.7}
.article-body a{color:var(--c-brand);border-bottom:1px solid rgba(26,90,69,.3)}
.article-body a:hover{color:var(--c-orange);border-bottom-color:var(--c-orange)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;overflow:hidden;border-radius:var(--r-sm)}
.article-body th{background:var(--c-surface-2);text-align:left;padding:13px 15px;font-weight:700;color:var(--c-text)}
.article-body td{padding:13px 15px;border-bottom:1px solid var(--c-line);color:var(--c-text-2)}
.article-body tr:nth-child(even) td{background:rgba(234,240,230,.55)}
.article-body pre{
  background:var(--c-ink);color:var(--c-lime);padding:18px 20px;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.article-body code{background:var(--c-surface-2);padding:2px 7px;border-radius:6px;font-size:14px;color:var(--c-brand)}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px dashed var(--c-line);margin:32px 0}

.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--c-line);
  border-radius:var(--r-lg);background:var(--c-surface-2);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 18px;
  display:grid;place-items:center;background:var(--c-surface);color:var(--c-brand-soft);font-size:24px;
  box-shadow:var(--sh-1);
}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:20px}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px 22px 20px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
}
.side-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.side-title{
  display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);
}
.side-title i{color:var(--c-brand-soft)}
.side-list li{border-bottom:1px solid var(--c-line)}
.side-list li:last-child{border-bottom:0}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:48px;padding:8px 10px;margin:0 -10px;border-radius:10px;
  font-size:14.5px;color:var(--c-text-2);
}
.side-list a:hover{background:var(--c-surface-2);color:var(--c-brand)}
.side-list a i{font-size:12px;color:var(--c-text-3);transition:transform .2s ease}
.side-list a:hover i{transform:translateX(2px);color:var(--c-brand)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-brand);font-size:13px;font-weight:600;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.tag:hover{background:var(--c-lime);color:var(--c-ink);transform:translateY(-2px)}
.side-cta{background:var(--grad-brand);border:0;color:#fff}
.side-cta .side-title{color:#fff;border-bottom-color:rgba(255,255,255,.2)}
.side-cta .side-title i{color:var(--c-lime)}
.side-cta p{font-size:14px;color:rgba(255,255,255,.82);margin-bottom:16px;line-height:1.8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 6px 18px rgba(201,241,107,.35)}
.btn-primary:hover{background:var(--c-orange);color:#fff;box-shadow:0 10px 24px rgba(255,106,43,.32)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-surface-2)}
.btn-ghost:active{transform:scale(.98)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.3)}
.btn-light:hover{background:#fff;color:var(--c-ink);border-color:#fff}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 相关推荐 ============ */
.block-gap{margin-top:64px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.block-head h2{font-size:28px;font-weight:700}
.block-head h2 small{display:block;font-size:13px;font-weight:500;color:var(--c-text-3);margin-top:6px;letter-spacing:.3px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand);
  border-bottom:1px solid rgba(26,90,69,.28);padding-bottom:2px;
}
.text-link i{transition:transform .2s ease}
.text-link:hover{color:var(--c-orange);border-bottom-color:var(--c-orange)}
.text-link:hover i{transform:translateX(2px)}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-thumb{position:relative;aspect-ratio:16/9;background:var(--c-surface-2);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-thumb .thumb-tag{
  position:absolute;left:14px;top:14px;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(11,36,29,.82);color:var(--c-lime);font-size:12px;font-weight:700;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.5}
.post-body h3 a:hover{color:var(--c-brand)}
.post-body p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.post-foot{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);border-top:1px dashed var(--c-line);
}

/* ============ 上/下篇 ============ */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.pager-item{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pager-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand-soft)}
.pager-item .dir{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:8px}
.pager-item .ttl{font-size:15.5px;font-weight:700;line-height:1.55;color:var(--c-text)}
.pager-item.right{text-align:right}

.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:44px 46px;margin-top:72px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,241,107,.20),transparent 68%);
}
.cta-band h2{color:#fff;font-size:28px;font-weight:800;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.8);font-size:15px;margin-top:10px;position:relative;z-index:1;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:var(--sp-section);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:16px;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul a{color:rgba(255,255,255,.7);display:inline-flex;align-items:center;gap:8px;min-height:28px}
.footer-col ul a:hover{color:var(--c-lime)}
.footer-note{margin-top:14px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.5)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .dot{margin:0 8px;color:rgba(255,255,255,.3)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
  .article-title{font-size:38px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:44px 0 var(--sp-section)}
  .sidebar{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .article-card{padding:28px 26px}
  .article-title{font-size:34px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:var(--c-ink);flex-direction:column;align-items:stretch;gap:4px;
    padding:20px 20px 32px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .nav-link{
    min-height:52px;padding:14px 16px;border-radius:14px;font-size:16px;color:rgba(255,255,255,.86);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-link.is-active{background:rgba(201,241,107,.12);color:#fff}
  .nav-link.is-active::after{display:none}
  .nav-cta{margin:20px 0 0;justify-content:center;min-height:52px;font-size:16px}
}
@media (max-width:767px){
  .article-head{padding:30px 0 26px}
  .article-title{font-size:30px;margin:14px 0 16px}
  .article-card{padding:22px 18px}
  .article-body{font-size:15px;line-height:1.8}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px;margin-top:24px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .pager-item.right{text-align:left}
  .cta-band{padding:30px 22px;margin-top:56px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{justify-content:flex-start}
  .block-head h2{font-size:22px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .article-title{font-size:26px}
  .meta-bar{gap:8px 14px;font-size:13px}
  .btn{padding:12px 20px;font-size:14.5px}
  .article-body table{font-size:13.5px}
  .article-body th,.article-body td{padding:10px 10px}
}

/* roulang page: category2 */
:root{
  --c-ink:#0B241D;
  --c-brand:#1A5A45;
  --c-brand-soft:#2E8567;
  --c-lime:#C9F16B;
  --c-orange:#FF6A2B;
  --c-bg:#F4F7F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#EAF0E6;
  --c-line:#DFE7DA;
  --c-text:#10201B;
  --c-text-2:#4C5C55;
  --c-text-3:#8B9A93;
  --grad-brand:linear-gradient(135deg,#0B241D 0%,#1A5A45 55%,#2E8567 100%);
  --r-lg:24px; --r-md:16px; --r-sm:12px; --r-pill:999px;
  --sh-1:0 6px 20px rgba(11,36,29,.06);
  --sh-2:0 14px 34px rgba(11,36,29,.12);
  --num:"Barlow Condensed","Oswald","PingFang SC",sans-serif;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:16px}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.2}
h1{font-size:clamp(30px,4.6vw,56px);font-weight:800;line-height:1.15}
h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25}
h3{font-size:clamp(19px,2vw,23px);font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:6px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-ink);
  border-bottom:1px solid rgba(46,133,103,.45);transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(11,36,29,.28)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:20px;letter-spacing:.01em}
.logo-mark{
  width:34px;height:34px;border-radius:12px;background:var(--c-lime);color:var(--c-ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto;
}
.logo-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:15px;
  color:rgba(255,255,255,.76);transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:3px;
  border-radius:3px;background:var(--c-lime);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;margin-left:10px;
  padding:10px 20px;border-radius:var(--r-pill);background:var(--c-lime);color:var(--c-ink);
  font-weight:700;font-size:15px;transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-cta:hover{background:var(--c-orange);color:#fff}
.nav-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(201,241,107,.4);
  background:transparent;color:var(--c-lime);border-radius:12px;cursor:pointer;font-size:18px;
}
.nav-toggle:hover{background:rgba(201,241,107,.12)}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:var(--r-pill);
  border:1px solid transparent;font-weight:700;font-size:15px;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 8px 22px rgba(201,241,107,.22)}
.btn-primary:hover{background:var(--c-orange);color:#fff;box-shadow:0 10px 26px rgba(255,106,43,.28)}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-surface-2)}
.btn-ghost:active{transform:scale(.98)}
.btn-dark{background:var(--c-ink);color:#fff}
.btn-dark:hover{background:var(--c-brand)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-brand);font-weight:700;
  border-bottom:2px solid rgba(26,90,69,.28);padding-bottom:2px;transition:color var(--ease),border-color var(--ease);
}
.text-link i{transition:transform var(--ease)}
.text-link:hover{color:var(--c-orange);border-color:var(--c-orange)}
.text-link:hover i{transform:translateX(3px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-brand);font-size:13px;font-weight:600;
}
.tag-lime{background:rgba(201,241,107,.35);color:var(--c-ink)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--grad-brand);color:#fff;overflow:hidden;padding:80px 0 92px}
.hero::before{
  content:"";position:absolute;right:-160px;top:-180px;width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(201,241,107,.14);
}
.hero::after{
  content:"";position:absolute;left:-120px;bottom:-220px;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(201,241,107,.16);color:var(--c-lime);font-size:13px;font-weight:700;margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:18px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-actions .text-link{color:var(--c-lime);border-color:rgba(201,241,107,.4)}
.hero-actions .text-link:hover{color:#fff;border-color:#fff}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:0 22px 46px rgba(3,16,12,.38);
}
.hero-chip{
  position:absolute;left:-14px;bottom:22px;background:var(--c-ink);color:#fff;
  border:1px solid rgba(201,241,107,.35);border-radius:var(--r-md);padding:14px 20px;
  box-shadow:var(--sh-2);
}
.hero-chip .num{display:block;font-size:34px;color:var(--c-lime);line-height:1}
.hero-chip span{font-size:12px;color:rgba(255,255,255,.7);letter-spacing:.08em}

/* ---------- 筛选条 ---------- */
.filter-bar{background:var(--c-bg);border-bottom:1px solid var(--c-line);padding:22px 0}
.filter-inner{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none}
.filter-inner::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:var(--r-pill);background:var(--c-surface);
  border:1px solid var(--c-line);color:var(--c-text-2);font-size:14px;font-weight:600;
  transition:all var(--ease);
}
.chip:hover{border-color:var(--c-brand-soft);color:var(--c-brand)}
.chip.is-active{background:var(--c-lime);border-color:var(--c-lime);color:var(--c-ink)}
.filter-hint{margin-left:auto;font-size:13px;color:var(--c-text-3);white-space:nowrap;flex:0 0 auto}

/* ---------- 板块通用 ---------- */
.section{padding:84px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head p{color:var(--c-text-2);margin-top:14px}
.section-eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-brand-soft);text-transform:uppercase;margin-bottom:12px}

/* ---------- 砖墙卡片 ---------- */
.brick{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.brick-col{display:flex;flex-direction:column;gap:24px}
.brick-col:nth-child(2){margin-top:52px}
.brick-col:nth-child(3){margin-top:20px}
.brick-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.brick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CBDBc2}
.brick-card img{width:100%;border-radius:0;object-fit:cover;background:var(--c-surface-2)}
.ratio-16-9{aspect-ratio:16/9}
.ratio-4-3{aspect-ratio:4/3}
.ratio-1-1{aspect-ratio:1/1}
.badge-float{
  position:absolute;top:14px;left:14px;z-index:2;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-ink);color:var(--c-lime);font-family:var(--num);font-size:13px;font-weight:700;letter-spacing:.06em;
}
.badge-float.hot{background:var(--c-orange);color:#fff}
.card-body{padding:26px}
.card-body h3{margin-bottom:12px}
.card-body p{color:var(--c-text-2);font-size:15px;margin-bottom:16px;line-height:1.8}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--c-line);padding-top:16px}
.card-meta .num{font-size:22px;color:var(--c-brand)}
.card-meta small{display:block;font-size:12px;color:var(--c-text-3);font-family:inherit;font-weight:400}

/* ---------- 参数对比条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.metric{padding:30px 26px;background:var(--c-surface)}
.metric:nth-child(even){background:var(--c-surface-2)}
.metric .label{display:block;font-size:13px;color:var(--c-text-3);letter-spacing:.06em;margin-bottom:10px}
.metric .value{font-family:var(--num);font-size:46px;font-weight:700;line-height:1;color:var(--c-ink);font-variant-numeric:tabular-nums}
.metric .value em{font-style:normal;font-size:18px;color:var(--c-brand-soft);margin-left:4px}
.metric .foot{display:block;margin-top:10px;font-size:13px;color:var(--c-text-2)}

/* ---------- 图文方法区 ---------- */
.method{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:center}
.method-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.steps{counter-reset:step}
.step{
  display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--c-line);
}
.step:first-child{padding-top:0}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-no{
  flex:0 0 auto;width:44px;height:44px;border-radius:14px;background:var(--c-ink);color:var(--c-lime);
  display:flex;align-items:center;justify-content:center;font-family:var(--num);font-size:20px;font-weight:700;
}
.step h3{font-size:19px;margin-bottom:8px}
.step p{color:var(--c-text-2);font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);overflow:hidden;transition:background var(--ease),border-color var(--ease)}
.faq-item[open]{background:var(--c-surface-2);border-color:#D2DECB}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--c-brand);transition:transform var(--ease);flex:0 0 auto}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-answer{padding:0 24px 22px;color:var(--c-text-2);font-size:15px;line-height:1.85}

/* ---------- 表单 CTA ---------- */
.consult{background:var(--c-surface-2)}
.consult-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.consult-points{margin-top:26px;display:grid;gap:14px}
.consult-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text-2)}
.consult-points i{color:var(--c-brand-soft);margin-top:5px}
.consult-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface-2);transition:border-color var(--ease),background var(--ease);
}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-lime);background:#fff;box-shadow:0 0 0 3px rgba(201,241,107,.35)}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:14px}
.back-home{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:15px;font-weight:600;color:var(--c-brand);
}
.back-home:hover{color:var(--c-orange)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:4fr 2.4fr 2.4fr 3.2fr;gap:36px;padding-bottom:44px}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:18px;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col li,.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a{transition:color var(--ease)}
.footer-col a:hover{color:var(--c-lime)}
.footer-note{font-size:12.5px;color:rgba(255,255,255,.42);margin-top:16px;line-height:1.75}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .dot{margin:0 8px;opacity:.5}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1120px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{
    position:fixed;inset:72px 0 0 0;background:var(--c-ink);flex-direction:column;
    align-items:stretch;gap:0;padding:18px 20px 32px;transform:translateY(-8px);
    opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .nav-link{padding:16px 6px;font-size:17px;border-radius:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-link.is-active::after{left:6px;right:auto;width:44px;bottom:8px}
  .nav-cta{margin:22px 0 0;justify-content:center;padding:15px 22px;font-size:16px}
  .hero{padding:60px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure img{aspect-ratio:16/9}
  .hero-chip{left:14px;bottom:14px}
  .section{padding:64px 0}
  .brick{grid-template-columns:repeat(2,1fr)}
  .brick-col:nth-child(3){margin-top:0;grid-column:span 2}
  .brick-col:nth-child(3){display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .brick-col:nth-child(3) .brick-card{height:100%}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .method{grid-template-columns:1fr;gap:32px}
  .method-figure img{aspect-ratio:16/9}
  .consult-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .filter-hint{display:none}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8}
  .container{padding:0 16px}
  .nav-wrap{min-height:66px}
  .main-nav{inset:66px 0 0 0}
  .logo{font-size:18px}
  .hero{padding:48px 0 56px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%;justify-content:center}
  .section{padding:52px 0}
  .section-head{margin-bottom:32px}
  .brick{grid-template-columns:1fr}
  .brick-col,.brick-col:nth-child(2),.brick-col:nth-child(3){margin-top:0;display:flex;grid-column:auto}
  .brick-col:nth-child(3){display:flex;flex-direction:column}
  .card-body{padding:22px}
  .metric{padding:22px 18px}
  .metric .value{font-size:36px}
  .step{gap:14px;padding:18px 0}
  .step-no{width:38px;height:38px;font-size:18px;border-radius:12px}
  .faq-item summary{padding:15px 18px;font-size:16px}
  .faq-answer{padding:0 18px 18px}
  .consult-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:479px){
  .metrics{grid-template-columns:1fr}
  .metric:nth-child(even){background:var(--c-surface)}
  .metric{border-bottom:1px solid var(--c-line)}
  .metric:last-child{border-bottom:0}
  .hero-chip{padding:11px 15px}
  .hero-chip .num{font-size:28px}
}

/* roulang page: category1 */
:root{
  --c-ink:#0B241D;
  --c-brand:#1A5A45;
  --c-brand-soft:#2E8567;
  --c-lime:#C9F16B;
  --c-orange:#FF6A2B;
  --c-bg:#F4F7F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#EAF0E6;
  --c-line:#DFE7DA;
  --c-text:#10201B;
  --c-text-2:#4C5C55;
  --c-text-3:#8B9A93;
  --grad-brand:linear-gradient(135deg,#0B241D 0%,#1A5A45 55%,#2E8567 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(11,36,29,.06);
  --sh-2:0 14px 34px rgba(11,36,29,.12);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
h1,h2,h3,h4{line-height:1.2;color:var(--c-text);font-weight:800}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-lime);color:var(--c-ink)}

.num{font-family:"Barlow Condensed","Oswald",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:.4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:clamp(48px,7vw,96px) 0}
.section.tight{padding-top:clamp(28px,4vw,44px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-ink);
  border-bottom:1px solid rgba(46,133,103,.5);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,36,29,.3)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2E8567,#C9F16B);
  color:var(--c-ink);font-size:17px;box-shadow:0 4px 14px rgba(201,241,107,.22);
}
.logo-text{color:#fff;font-size:19px;font-weight:800;letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:var(--r-pill);
  color:rgba(255,255,255,.78);font-size:15px;font-weight:600;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(201,241,107,.1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:2px;background:var(--c-lime);
}
.nav-cta{
  margin-left:10px;display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);
  background:var(--c-lime);color:var(--c-ink);
  font-size:14px;font-weight:800;letter-spacing:.3px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-cta:hover{background:var(--c-orange);color:#fff}
.nav-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:44px;height:44px;place-items:center;
  border:1px solid rgba(255,255,255,.18);border-radius:12px;
  color:#fff;font-size:18px;transition:background var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.08)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding-top:26px}
.breadcrumb a{color:var(--c-text-3);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-brand);font-weight:600}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,var(--c-bg) 100%);padding-bottom:clamp(36px,5vw,60px)}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;
  border:1px solid rgba(26,90,69,.12);border-radius:50%;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,52px);
  align-items:start;padding-top:clamp(24px,3.6vw,40px);
}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);background:var(--c-surface-2)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(11,36,29,.82);color:var(--c-lime);
  font-size:13px;font-weight:700;backdrop-filter:blur(4px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-brand);
  font-size:13px;font-weight:700;letter-spacing:.6px;margin-bottom:18px;
}
.eyebrow i{font-size:12px}
.page-hero h1{font-size:clamp(32px,4.6vw,44px);letter-spacing:-.5px}
.lede{margin-top:16px;max-width:640px;color:var(--c-text-2);font-size:16px;line-height:1.85}
.point-list{margin-top:28px;border-top:1px solid var(--c-line)}
.point-list li{
  display:grid;grid-template-columns:auto 1fr;gap:4px 16px;
  padding:14px 0;border-bottom:1px dashed var(--c-line);
  transition:background var(--ease);
}
.point-list li:hover{background:rgba(234,240,230,.6)}
.point-idx{
  grid-row:span 2;align-self:start;
  font-family:"Barlow Condensed",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--c-brand);min-width:32px;line-height:1.2;
}
.point-title{font-size:16px;font-weight:700;color:var(--c-text)}
.point-desc{font-size:14px;color:var(--c-text-2);line-height:1.7}

/* ---------- 数据徽章条 ---------- */
.stat-strip{
  background:var(--c-surface-2);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:clamp(22px,3vw,32px);
  display:grid;grid-template-columns:repeat(4,1fr);gap:6px;
}
.stat-item{padding:6px 20px;border-left:1px solid var(--c-line)}
.stat-item:first-child{border-left:0;padding-left:6px}
.stat-num{font-size:clamp(26px,3.2vw,36px);color:var(--c-ink);line-height:1.1}
.stat-num small{font-size:.5em;margin-left:2px;font-weight:600}
.stat-label{margin-top:6px;font-size:13px;color:var(--c-text-2);line-height:1.6}

/* ---------- 板块标题 ---------- */
.section-head{max-width:760px;margin-bottom:clamp(24px,3.4vw,40px)}
.section-head h2{font-size:clamp(24px,3.2vw,34px);letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:15.5px;line-height:1.85}
.section-head .kicker{
  display:inline-block;color:var(--c-brand);font-size:13px;font-weight:800;
  letter-spacing:1.4px;text-transform:uppercase;margin-bottom:12px;
}

/* ---------- 内容卡片（不等高两列） ---------- */
.feature-split{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.feature-split.rev{grid-template-columns:5fr 7fr;margin-top:24px}
.feature-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3DFCC}
.feature-card figure{margin:0;background:var(--c-surface-2)}
.feature-card img{width:100%;object-fit:cover}
.feature-split .feature-card:first-child img{aspect-ratio:16/9}
.feature-split .feature-card:last-child img{aspect-ratio:16/10}
.feature-body{padding:clamp(22px,2.6vw,30px);display:flex;flex-direction:column;gap:12px;flex:1}
.feature-body h3{font-size:clamp(19px,2.1vw,23px)}
.feature-body p{color:var(--c-text-2);font-size:15px;line-height:1.8}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-brand);font-size:12.5px;font-weight:700;
}
.text-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  align-self:flex-start;padding-bottom:2px;
  color:var(--c-brand);font-weight:800;font-size:14.5px;
  border-bottom:1.5px solid rgba(26,90,69,.3);
  transition:color var(--ease),border-color var(--ease),gap var(--ease);
}
.text-link:hover{color:var(--c-orange);border-color:var(--c-orange);gap:11px}

/* ---------- 时间线 ---------- */
.timeline-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:clamp(24px,3.4vw,44px);
}
.timeline{position:relative;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:6px;top:10px;bottom:10px;width:1px;background:var(--c-line);
}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:13px;height:13px;border-radius:50%;
  background:var(--c-lime);box-shadow:0 0 0 4px rgba(201,241,107,.28);
}
.tl-time{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;color:var(--c-brand);letter-spacing:.6px;
}
.tl-item h3{margin-top:8px;font-size:18px}
.tl-item p{margin-top:6px;color:var(--c-text-2);font-size:15px;line-height:1.8;max-width:760px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;transition:background var(--ease),border-color var(--ease);
}
.faq-item[open]{background:var(--c-surface-2);border-color:#D3DFCC}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:56px;padding:16px 24px;font-size:16px;font-weight:700;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-brand)}
.faq-icon{color:var(--c-brand);font-size:14px;transition:transform .25s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-answer{padding:0 24px 22px;color:var(--c-text-2);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:28px;
  padding:clamp(28px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:340px;height:340px;
  border:1px solid rgba(201,241,107,.22);border-radius:50%;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);letter-spacing:-.3px;position:relative;z-index:1}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.76);font-size:15px;max-width:620px;position:relative;z-index:1}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;position:relative;z-index:1}
.cta-actions .link-light{
  color:#fff;font-weight:700;font-size:14.5px;border-bottom:1.5px solid rgba(255,255,255,.4);
  padding-bottom:2px;transition:border-color var(--ease),color var(--ease);
}
.cta-actions .link-light:hover{color:var(--c-lime);border-color:var(--c-lime)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.btn-primary{background:var(--c-lime);color:var(--c-ink)}
.btn-primary:hover{background:var(--c-orange);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-surface-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:clamp(56px,7vw,96px);padding:clamp(44px,5vw,64px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:clamp(24px,3.4vw,44px)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.6px;font-weight:800}
.footer-col ul{display:grid;gap:10px;font-size:14px;line-height:1.6}
.footer-col a{color:rgba(255,255,255,.72);transition:color var(--ease)}
.footer-col a:hover{color:var(--c-lime)}
.footer-note{margin-top:16px;font-size:13px;line-height:1.75;color:rgba(255,255,255,.5)}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .dot{margin:0 8px;color:rgba(255,255,255,.28)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media img{aspect-ratio:16/9}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item{border-left:1px solid var(--c-line);padding:10px 16px}
  .stat-item:nth-child(odd){border-left:0;padding-left:4px}
  .feature-split,.feature-split.rev{grid-template-columns:1fr;margin-top:0}
  .feature-split.rev{margin-top:24px}
  .feature-split .feature-card:first-child img,
  .feature-split .feature-card:last-child img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-toggle{display:grid}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-ink);padding:14px 20px 32px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:transform .22s ease,opacity .22s ease,visibility .22s;
  }
  .main-nav.is-open{transform:none;opacity:1;visibility:visible}
  .nav-link{
    min-height:52px;padding:16px 6px;border-radius:0;font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-link:hover{background:transparent;color:var(--c-lime)}
  .nav-link.is-active::after{left:6px;right:auto;width:34px;bottom:10px}
  .nav-cta{margin:20px 0 0;justify-content:center;padding:15px 20px;font-size:16px}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .stat-strip{grid-template-columns:1fr;gap:2px}
  .stat-item{border-left:0;padding:12px 4px;border-top:1px solid var(--c-line)}
  .stat-item:first-child{border-top:0}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px;font-size:14.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}